dc.contributor.author | Hamedi, Homa | |
dc.contributor.author | Karimi, Iftekhar A | |
dc.contributor.author | Gundersen, Truls | |
dc.date.accessioned | 2020-03-25T10:11:06Z | |
dc.date.available | 2020-03-25T10:11:06Z | |
dc.date.created | 2019-04-29T12:10:53Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Computers and Chemical Engineering. 2019, 121 633-638. | en_US |
dc.identifier.issn | 0098-1354 | |
dc.identifier.uri | https://hdl.handle.net/11250/2648519 | |
dc.description.abstract | Natural gas reserves with 0.3–2 mol% helium are considered as the only viable source for this noble gas. Currently, cryogenic separation is used to extract helium, but it is energy-intensive. While membrane-based separation is a promising alternative, it is still not considered economical. Even for an inorganic/silica membrane with relatively high selectivity and permeance, a multi-stage membrane system with inter-stage compression is required, which necessitates high CAPEX and OPEX. This study proposes a novel process to enhance the selectivity and permeance of an inorganic/silica membrane system to eliminate the costly inter-stage compression. A 16–24% reduction in the CAPEX and 23–57% in the OPEX are achievable for a natural gas feed with 3–5 mol% helium. In contrast, for a 2 mol% helium feed, the OPEX increases by 34%. However, a 30% decrease in the capital cost outweighs the OPEX increase to make the new process more profitable. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | A novel cost-effective silica membrane-based process for helium extraction from natural gas | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.source.pagenumber | 633-638 | en_US |
dc.source.volume | 121 | en_US |
dc.source.journal | Computers and Chemical Engineering | en_US |
dc.identifier.doi | 10.1016/j.compchemeng.2018.12.013 | |
dc.identifier.cristin | 1694523 | |
dc.description.localcode | © 2018. This is the authors’ accepted and refereed manuscript to the article. Locked until 8.12.2020 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
cristin.unitcode | 194,64,25,0 | |
cristin.unitname | Institutt for energi- og prosessteknikk | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 2 | |